Introduction to mathematics in primary schools : from information supplied by the ministries of education.

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Údar corparáideach: International Conference on Public Education Geneva, Switzerland
Formáid: Imeacht comhdhála LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Paris : Unesco, 1950.
Sraith:Publication (International Bureau of Education) ; no. 121.
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